CN113700436A - Pressurizing device used in drill rod and fluid jet guiding drilling tool - Google Patents
Pressurizing device used in drill rod and fluid jet guiding drilling tool Download PDFInfo
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- CN113700436A CN113700436A CN202111159372.5A CN202111159372A CN113700436A CN 113700436 A CN113700436 A CN 113700436A CN 202111159372 A CN202111159372 A CN 202111159372A CN 113700436 A CN113700436 A CN 113700436A
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- 238000005553 drilling Methods 0.000 title claims abstract description 86
- 239000012530 fluid Substances 0.000 title claims abstract description 71
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 27
- 238000007906 compression Methods 0.000 claims description 27
- 230000000087 stabilizing effect Effects 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims 3
- 241001330002 Bambuseae Species 0.000 claims 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 3
- 239000011425 bamboo Substances 0.000 claims 3
- 238000010030 laminating Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 11
- 238000007667 floating Methods 0.000 description 9
- 238000005507 spraying Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/16—Drill collars
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a supercharging device used in a drill rod, which comprises a first power device connected with a drill rod and a drill collar, a second power device arranged in a manner of rotating relative to a drill bit, and a regulating device connected between the first power device and the second power device; the invention discloses a fluid jet guiding drilling tool, which comprises a first power device, a second power device, a drill bit, a fluid jet guiding drilling tool and a fluid jet guiding drilling tool.
Description
Technical Field
The invention relates to a rotary steering drilling device in the field of petroleum drilling engineering, in particular to a pressurizing device used in a drill rod of hydraulic rock breaking steering drilling, and also provides a fluid jet steering drilling tool with the pressurizing device.
Background
The rotary steering drilling system is an important drilling tool for wells with complex structures, such as horizontal wells, directional wells, extended reach wells and the like. The rotary steering drilling system reduces the pressure supporting phenomenon by rotating the shell or rotating most of the shell and not rotating the extremely short part, thereby realizing the construction of deeper and longer horizontal wells and directional wells. In recent years, rotary steerable drilling systems have become popular steerable drilling techniques and become one of the key techniques for efficient drilling. The principle of the rotary steering drilling system is that uneven rock breaking is carried out in controllable different directions, and the rock breaking amount in a specific direction is larger than that in other directions.
At present, the rock breaking mode of the rotary steering drilling system is a mechanical rock breaking mode, the side cutting capability and the guiding lateral force of a drill bit are mainly relied on, but a biasing mechanism generating the lateral force is easily failed under the influence of adverse factors such as vibration, impact and rotation, and further the guiding effect and the service life of the whole rotary steering drilling system are influenced.
Therefore, how to avoid the failure of the biasing mechanism, even a guiding drilling device which does not need the biasing mechanism and has a simpler and more reliable structure is a technical problem which needs to be solved by the technical personnel in the field at present.
Disclosure of Invention
The invention aims to provide a pressurizing device used in a drill rod of hydraulic rock breaking guide drilling, which does not need additional power, provides low-pressure drilling fluid for a drilling tool and simultaneously provides high-pressure directional rock breaking drilling hydraulic for the drilling tool.
In order to achieve the aim, the invention provides a supercharging device used in a drill pipe, which comprises a first power device connected with a drill collar of the drill pipe, a second power device arranged in a manner of rotating relative to a drill bit and a regulating device connected between the first power device and the second power device; under the drilling fluid flow power, the first power device and the second power device rotate oppositely, and the second power device discharges part of drilling fluid after being pressurized through a drill bit, so that unpowered pressurization is realized.
Preferably, the first power device is an upper turbine which rotates under the flow resistance of the drilling fluid;
more preferably, the second power unit includes: the power turbine and the power turbine are integrated, the compression turbine is arranged in the turbine cavity, the bottom of the turbine cavity is communicated to a high-pressure nozzle on the drill bit through a valve plate group, and part of drilling fluid enters the turbine cavity under the action of the power turbine of the second power device, is pressurized by the compression turbine and is sprayed out through the drill bit;
the upper turbine and the power turbine automatically rotate under the pressure of the flowing drilling fluid, and the rotating directions are opposite.
Preferably, the cavity of the turbine cavity is in a shape of a horn with a large upper part and a small lower part, the profile of the compression turbine is adapted to the cavity of the turbine cavity, the bottom of the turbine cavity is communicated with a high-pressure cavity, the bottom of the high-pressure cavity is in relatively rotary insertion connection with the drill bit, and the drilling fluid pressurized by the compression turbine flows to the high-pressure nozzle on the drill bit through the high-pressure cavity to be sprayed out.
Preferably, the wall of the high-pressure cavity is of a double-layer structure, the double-layer structure divides the high-pressure cavity into an inner cavity and an outer cavity, an upper valve plate with a pressure rod is arranged in the inner cavity, the upper valve plate is attached to a lower valve plate fixedly arranged on the drill bit, and the upper valve plate and the lower valve plate form a valve plate group.
Further preferably, a piston is arranged in the outer cavity, and an elastic member is arranged on the inner side of the piston relative to the outer cavity.
Preferably, the upper part of the compression rod is provided with a shunting hole communicated with the high-pressure cavity, and the lower part of the compression rod is connected with the upper valve plate through an elastic telescopic structure in a compressed state, so that the upper valve plate is abutted against the lower valve plate with a certain pressing force.
Preferably, the upper valve plate is a circular valve plate provided with at least one first eccentric through hole, the lower valve plate is a circular valve plate provided with at least two second eccentric through holes uniformly distributed with the center of the valve plate as the center, when the drill bit rotates, the second eccentric through holes are alternately communicated with the first eccentric through holes at a certain frequency, so that high-pressure fluid in the high-pressure cavity intermittently enters the high-pressure nozzle of the drill bit to be sprayed out through the communicated first eccentric through holes and second eccentric through holes, namely, the upper valve plate is fixed with the high-pressure cavity, the lower valve plate is arranged on the drill bit and rotates along with the drill bit, when the drill bit rotates, the lower valve plate synchronously rotates along with the drill bit, so that the second eccentric holes in the upper valve plate are intermittently and correspondingly communicated with the first eccentric holes in the upper valve plate according to the rotating speed parameter of the drill bit, and when the first eccentric holes are communicated with the second eccentric holes, the high-pressure fluid enters the high-pressure nozzle to be sprayed out through the communicated holes, when the first eccentric hole and the second eccentric hole are not communicated, the high-pressure water flow is cut off, so that the high-pressure nozzle intermittently sprays high-pressure fluid.
Preferably, the lower valve plate is a circular valve plate provided with at least three second eccentric through holes uniformly distributed with the centers of the circle of the valve plate as centers, when the drill bit rotates, the second eccentric through holes are alternately communicated with the first eccentric through holes at a certain frequency, so that high-pressure fluid in the high-pressure cavity intermittently enters the high-pressure nozzle of the drill bit through the communicated first eccentric through holes and the second eccentric through holes to be sprayed out.
Further preferably, a sealing ring structure is arranged at the insertion position of the high-pressure cavity and the drill bit.
Further preferably, the regulation and control device comprises a generator, a stabilizing motor, a measurement and control circuit board and an attitude sensor which are sequentially connected with the upper turbine, the measurement and control circuit board and the attitude sensor are arranged in an extension shell of the stabilizing motor, and the tail of the extension shell of the stabilizing motor is connected with a power turbine of the second power device.
The invention also discloses a fluid jet guiding drilling tool, which comprises the supercharging device used in the drill rod, an outer barrel sleeved on the periphery of the supercharging device, a drill collar connected to the upper end of the outer barrel and a drill bit connected to the lower end of the outer barrel, wherein one part of drilling fluid in the inner cavity of the outer barrel flows out through a low-pressure water hole of the drill bit, and the other part of drilling fluid flows out through a high-pressure nozzle of the drill bit after being supercharged by the supercharging device.
Further preferably, an upper turbine in the supercharging device is connected to the drill collar through a central shaft and an upper protection cylinder, a lower coil is mounted on the upper portion of the central shaft, the lower coil and an upper coil in the upper protection cylinder are arranged in a coaxial gap mode, and the lower coil and the upper coil can rotate relatively and are both sealing spiral leads.
Further preferably, the upper protection cylinder is arranged in the center relative to the outer cylinder through an upper protection cylinder centralizer, the central shaft and the upper protection cylinder are arranged in an inserted mode, and an upper centralizing bearing is arranged on the periphery of the central shaft.
Further preferably, a lower centering bearing is arranged on the outer side of the lower portion of the turbine cavity in the supercharging device, and the supercharging device freely rotates in the inner cavity of the outer cylinder through the upper centering bearing at the upper end and the lower centering bearing at the lower end under the flowing of drilling fluid.
Further preferably, the outer cylinder and the drill bit rotate synchronously under the power of the drill collar.
Compared with the prior art, the supercharging device for the drill rod is different in structure, partial drilling fluid is led into a turbine cavity to be supercharged under the action of flowing power of the drilling fluid by utilizing two groups of turbines with opposite rotation directions, the supercharged drilling fluid is ejected from a high-pressure nozzle of a drill bit at a certain frequency in an interrupted mode through valve block groups, and the supercharging device is applied to a fluid jet guide drilling tool, so that the drilling fluid is guided in a rock breaking mode by utilizing the flowing power of the drilling fluid, the defect that a mechanical offset structure fails is avoided, the supercharging device is higher in reliability and longer in service life, the supercharging device is matched with a mechanical mode of the rotation of the drill bit to break rock jointly, directional rock breaking is realized, and the directional drilling speed is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a pressurizing device used in a drill rod and applied to a fluid jet guide drilling tool;
FIG. 2 is a schematic structural view of an upper valve plate in FIG. 1;
FIG. 3 is a schematic structural view of the lower valve plate shown in FIG. 1;
fig. 4 is an enlarged view of a portion of the high pressure chamber 18 of fig. 1.
In the drawings: 1. the device comprises an upper protection cylinder, 2, an upper protection cylinder centralizer, 3, an upper coil, 4, a lower coil, 5, an upper centralizing bearing, 6, a central shaft, 7, an upper turbine, 8, a generator, 9, a stabilizing motor, 10, a measurement and control circuit board, 11, an attitude sensor, 12, a power turbine, 13, a compression turbine, 14, a turbine cavity, 15, a lower centralizing bearing, 16, an elastic part, 17, an outer cylinder, 18, a high-pressure cavity, 19, a pressure rod, 20, a piston, 21, an upper valve plate, 22, a lower valve plate, 23, a drill bit, 24, a high-pressure nozzle, 25 and a low-pressure water eye.
Detailed Description
The core of the invention is to provide a pressurizing device used in a drill rod of hydraulic rock breaking guide drilling, the pressurizing device does not need extra power, provides low-pressure drilling fluid for a drilling tool and simultaneously provides high-pressure directional rock breaking drilling hydraulic for the drilling tool.
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.
The first embodiment is as follows:
1-4, a pressure intensifier for use in a drill pipe, the intensifier comprising a first power device coupled to a drill pipe collar: an upper turbine 7, a second power device arranged to rotate relatively to the drill bit 23, the second power device comprising: the power turbine 12 and the compression turbine 13 are integrated with the power turbine 12 and are arranged in the turbine cavity 14, and the bottom of the turbine cavity 14 is communicated to a high-pressure nozzle 24 on a drill bit 23 through a valve plate group; under the flow force of the drilling fluid, the rotation directions of the upper turbine 7 and the power turbine 12 are opposite, part of the drilling fluid enters the turbine cavity 14 under the action of the power turbine 12 of the second power device, is pressurized by the compression turbine 13 and then is ejected out through the drill bit 23, and unpowered pressurization is realized.
For better supercharging effect, the cavity of the turbine cavity 14 in this embodiment is in a trumpet shape with a large top and a small bottom, the power turbine 12 and the compression turbine 13 are formed by a plurality of axially uniformly distributed turbines in an integrated design and rotate synchronously, the plurality of turbines gradually decrease in radius from the power turbine 12 to the compression turbine 13, as shown in fig. 1, the upper half is the power turbine 12, the lower half is the compression turbine 13, the radius or diameter of any one turbine in the turbine group forming the power turbine 12 is larger than that of any one turbine forming the compression turbine 13, so that the partially drained drilling fluid is conveyed into the turbine cavity 14 in stages, the compression turbine 13 is located in the turbine cavity 14, the profile of the compression turbine 13 is adapted to the cavity of the turbine cavity 14, which is consistent with the gradual decrease in radius of the turbine forming the compression turbine 13 as described above, and is in a trumpet shape with a large top and a small bottom, the bottom of the turbine cavity 14 is communicated with a high-pressure cavity 18, the high-pressure cavity 18 and the turbine cavity 14 are designed in an integrated mode, the inner diameter of the high-pressure cavity 18 is smaller than that of any position of the turbine cavity 14, the high-pressure cavity 18 is preferably a long tubular cavity, the bottom of the high-pressure cavity 18 and a drill bit 23 can be inserted in a relatively rotating mode, namely the high-pressure cavity 18 is fixedly arranged and does not rotate along with the rotation of the drill bit 23 and does not rotate along with the rotation of the power turbine 12 or the compression turbine 13.
Under the action of the power of the drilling fluid, one part of the drilling fluid flows into a low-pressure water hole 25 of the drill bit 23 under the action of the power turbine 12 to be discharged, and the other part of the drilling fluid flows to a high-pressure nozzle 24 on the drill bit 23 through a high-pressure cavity 18 after being guided and pressurized by the compression turbine 13 to be sprayed out. In order to ensure intermittent and frequent spraying state and fixed spraying position, the cavity wall of the high-pressure cavity 18 is designed into a double-layer structure, as shown in fig. 4, the double-layer structure divides the high-pressure cavity 18 into an inner cavity and an outer cavity, an upper valve plate 21 with a pressure rod 19 is arranged in the inner cavity, the upper valve plate 21 is attached to a lower valve plate 22 fixedly arranged on a drill bit 23, and the upper valve plate 21 and the lower valve plate 22 form a valve plate group. The upper part of the pressure lever 19 is provided with a shunting hole communicated with the high-pressure cavity 18, and the lower part of the pressure lever 19 is connected to the upper valve plate 21 through an elastic telescopic structure in a compressed state, so that the upper valve plate 21 is tightly pressed against the lower valve plate 22 with a certain pressing force. In the working process, the elastic telescopic structure in a compressed state between the pressure lever 19 and the upper valve plate 21 can keep the mutual pressing force between the upper valve plate 21 and the lower valve plate 22 unchanged, that is, if the pressure of the drilling fluid flowing to the position is large, the elastic telescopic structure increases the compression and reduces the pressure, if the pressure of the drilling fluid flowing to the position is small, the elastic telescopic structure increases the tension and enhances the pressure, so that the mutual pressing force between the upper valve plate 21 and the lower valve plate 22 is kept unchanged, the mutual pressing force between the upper valve plate 21 and the lower valve plate 22 is prevented from being insufficient to cause relative clearance and liquid leakage, the mutual pressing force between the upper valve plate 21 and the lower valve plate 22 is also prevented from being too large to cause damage due to too large friction when the upper valve plate 21 and the lower valve plate 22 relatively rotate, the upper valve plate 21 is arranged in the inner cavity of the high-pressure cavity 18 through the pressure lever 19 and is fixedly arranged relative to the drill bit 23 as the same as the drill bit 14, that the upper valve plate 21 does not rotate, the lower valve plate 22 is arranged on the drill bit 23, and rotates along with the drill bit 23, and pressurized drilling fluid flows into the upper valve plate 21 through the diversion hole, enters the high-pressure nozzle 24 through the upper valve plate 21 and the lower valve plate 22, and is discharged intermittently.
The upper valve plate 21 does not rotate relative to the lower valve plate 23, under the corresponding centralizing action of the upper centralizing bearing 5 and the lower centralizing bearing 15, the central shaft 6, the upper turbine 7, the generator 8, the stabilizing motor 9, the measurement and control circuit board 10, the attitude sensor 11, the power turbine 12, the compression turbine 13, the turbine cavity 14, the high-pressure cavity 18, the compression bar 19 and the upper valve plate 21 form a floating connection assembly, the whole is stably arranged in the middle, and the upper centralizing bearing 5 and the lower centralizing bearing 15 are of bearing structures, so that the floating connection assembly is integrally installed at the center of the outer cylinder in a floating mode. When the outer cylinder 17 rotates clockwise along with the drill bit 23, the upper valve plate 21 of the floating connection assembly rubs relatively against the lower valve plate 22 on the drill bit 23, and under the action of the friction force, the bearing friction action of the upper righting bearing 5 and the lower righting bearing 15 and the self-centering inertia action of the floating connection assembly, the floating connection assembly rotates along with the outer cylinder 17 in the same direction at a small rotating speed which is far less than the rotating speed of the outer cylinder 17, and finally a superposed clockwise moment A is formed. However, under the action of the drilling fluid flow force, the upper turbine 7 and the power turbine 12 rotate in opposite directions to generate mutually offset friction torque, the counterclockwise torque in the design is larger than the clockwise torque, the torque result after the mutual offset of the upper turbine 7 and the power turbine 12 is the counterclockwise torque B, the clockwise torque a is approximately equal to the counterclockwise torque B, and after the mutual offset of the upper turbine and the power turbine, the floating connection assembly is integrally in a stable state.
Moreover, even if the clockwise moment a and the counterclockwise moment B cannot be exactly offset, the attitude sensor 11 senses the rotation state of the floating connection assembly and then controls the rotor of the stabilizing motor to rotate forward and backward to generate rotational inertia to offset the moment difference between the clockwise moment a and the counterclockwise moment B in the opposite direction, so that the floating connection assembly is relatively stable or only swings in a small amplitude; and then the upper valve plate 21 is ensured to be stable, namely, the rock breaking by spraying at each time is ensured to be at the same position, and further, the hydraulic directional rock breaking is realized.
In the scheme, the attitude sensor 11 measures the real-time attitude (the angle with the plumb line, the clockwise angle with the magnetic north pole and the like) of the drilling tool, namely the well deviation and the direction of the track of the drill bit, and the real-time attitude is measured by the gravity acceleration sensor and the fluxgate sensor, so that the mounting position of the sensor is stable and the measuring precision is very important. As a further preferred embodiment, in order to keep the pressure in the high pressure chamber 18 at the upper valve plate 21 stable, a piston 20 is disposed in the outer chamber, an elastic member 16 is disposed inside the piston 20 relative to the outer chamber, the elastic member 16 is preferably a spring, the pressures at the upper side and the lower side of the piston 20 are consistent under the preset elastic force of the elastic member 16, if the pressure in the high pressure chamber 18 at the upper valve plate 21 is too large, the piston 20 overcomes the pressure rise of the elastic member 16, so as to reduce and equalize the pressure in the high pressure chamber 18 at the upper valve plate 21, and if the pressure in the high pressure chamber 18 at the upper valve plate 21 is too small, the effect of injecting the high pressure drilling fluid is not achieved, the piston 20 drops under the elastic force of the elastic member 16, so as to increase and equalize the pressure in the high pressure chamber 18 at the upper valve plate 21, thereby ensuring the injection pressure of the drilling fluid. In order to further optimize the pressure stability in the high-pressure cavity 18 at the position of the upper valve plate 21, a sealing ring structure is arranged at the insertion position of the high-pressure cavity 18 and the drill bit 23.
With respect to ensuring the injection pressure of the drilling fluid, the arrangement of the pressure rod 19 and the piston 20 with the elastically stretchable structure can play a role of synergy, and the double structure ensures the stable injection pressure of the drilling fluid.
Regarding the gap and positioning injection of the high-pressure nozzle 24, the scheme adopted by the embodiment is as follows: the upper valve plate 21 is a circular valve plate provided with at least one first eccentric through hole, the lower valve plate 22 is a circular valve plate provided with at least two second eccentric through holes uniformly distributed with the circle center of the valve plate 22 as the center, when the drill bit 23 rotates, the upper valve plate 21 does not rotate, and the second eccentric through holes are alternately communicated with the first eccentric through holes at a certain frequency, so that high-pressure drilling fluid in the high-pressure cavity 18 intermittently enters the high-pressure nozzle 24 of the drill bit 23 through the communicated first eccentric through holes and the second eccentric through holes to be sprayed out. Preferably, the lower valve plate 22 is a circular valve plate provided with at least three second eccentric through holes uniformly distributed with the circle center of the upper valve plate 21 as the center, and when the drill bit 23 rotates, the second eccentric through holes are alternately communicated with the first eccentric through holes at a certain frequency, so that the high-pressure fluid in the high-pressure cavity 18 intermittently enters the high-pressure nozzle 24 of the drill bit 23 through the communicated first eccentric through holes and second eccentric through holes to be sprayed out. During operation, the upper valve plate 21 is kept stationary by the turbine chamber 14 or the high pressure chamber 18, i.e. the first eccentric through hole of the upper valve plate 21 is always aligned in the same direction. The position is unchanged, the lower valve plate 22 and the drill bit 23 rotate together, each second eccentric through hole in the lower valve plate 22 is communicated with the first eccentric through hole in the upper valve plate 21 once when the drill bit 23 rotates one circle, namely the high-pressure nozzle 24 sprays high-pressure drilling fluid three times when the drill bit 23 rotates one circle, and the spraying position is unchanged. And further realize directional hydraulic pulse rock breaking.
Example two:
in this embodiment, an intermediate connection structure is added on the basis of the first embodiment, and details of the first power device, the second power device, the high-pressure chamber 18, the pressure rod 19, the piston 20, the upper valve plate 21, and the lower valve plate 22 are not repeated herein, and the description of the regulating device connected between the first power device and the second power device is repeated in this embodiment; the regulation and control device is further optimized on the basis of the first embodiment, the second power device is always in a static state or a small-amplitude left-right swinging state, and the pressurization structure is guaranteed to be stable and effective.
The regulation and control device in this embodiment includes generator 8, stabilizing motor 9, observing and controlling circuit board 10 and attitude sensor 11 that connect gradually with last turbine 7, observes and controls circuit board 10 and attitude sensor 11 and sets up in stabilizing motor 9's extension casing, and stabilizing motor 9's extension casing afterbody is connected with second power device's power turbine 12. The generator 8 is arranged on the upper turbine 7, under the action of the flowing power of the drilling fluid, the upper turbine 7 rotates to further drive the rotor of the generator 8 to generate power, the generator 8 generates power and supplies power to the stabilizing motor 9, the stabilizing motor 9 can rotate positively and negatively, and then the power turbine 12, the compression turbine 13 and the turbine cavity 14 in the second power device are controlled to always keep in the middle or swing in a small amplitude. The attitude sensor 11 is located near a power turbine 12 in the second power device and used for monitoring the attitude, the angle and the motion state of the second power device in real time, and the measurement and control circuit board 10 receives the signal of the attitude sensor 11 and provides a control signal for the generator 8, the stabilizing motor 9 and the like through the signal.
Example three:
a fluid jet guided drilling tool includes the pressurization device used in a drill rod of the first embodiment or the second embodiment, and details of the specific technical scheme of the pressurization device are described in the first embodiment and/or the second embodiment, which are not described again in this embodiment, and the detailed description of the structure matched with the adding device and the technical details of the fluid jet guided drilling tool including the pressurization device are repeated in this embodiment.
The fluid jet guiding drilling tool in the embodiment comprises an outer cylinder 17, a drill collar and a drill bit 23, wherein the outer cylinder 17 is sleeved on the periphery of the pressurizing device, the drill collar is connected to the upper end of the outer cylinder 17, the drill bit 23 is connected to the lower end of the outer cylinder 17, a high-pressure nozzle 24 and a low-pressure water hole 25 are not arranged in the drill bit 23, a part of drilling fluid in an inner cavity of the outer cylinder 17 flows out through the low-pressure water hole 25 of the drill bit 23, and the other part of drilling fluid flows out through the high-pressure nozzle 24 of the drill bit 23 after being pressurized by the pressurizing device. The inner cavity between the outer cylinder 17 and the pressurizing device forms a drilling fluid circulation cavity, and as in the first embodiment, the pressurized drilling fluid in the high-pressure cavity 18 is communicated with the high-pressure nozzle 24 of the drill bit 23 through the upper valve plate 21 and the lower valve plate 22, so that a pressurized drilling fluid ejection path is formed.
In order to ensure the position stability of a supercharging device used in a drill rod in an outer cylinder 17, an upper turbine 7 in the supercharging device is connected to a drill collar through a central shaft 6 and an upper protection cylinder 1, a lower coil 4 is installed on the upper portion of the central shaft 6, the lower coil 4 and an upper coil 3 in the upper protection cylinder 1 are arranged in a coaxial clearance mode, the lower coil 4 and the upper coil 3 can rotate relative to each other and are both sealing spiral wires, and through the electromagnetic induction principle, under the condition of mutual rotation, electromagnetic induction acts, and the lower coil 4 and the upper coil 3 transmit signals mutually.
In order to further ensure the position stability of the pressurizing device used in the drill rod in the outer cylinder, the upper protection cylinder 1 is arranged in the center relative to the outer cylinder 17 through the upper protection cylinder centralizer 2, the central shaft 6 and the upper protection cylinder 1 are arranged in an inserted manner, the periphery of the central shaft 6 is provided with an upper centralizing bearing 5, the outer side of the lower part of the turbine cavity 14 in the pressurizing device is provided with a lower centralizing bearing 15, and the pressurizing device freely rotates in the inner cavity of the outer cylinder 17 through the upper centralizing bearing 5 at the upper end and the lower centralizing bearing 15 at the lower end under the flowing of drilling fluid. Under the power of the drill collar, the outer cylinder 17 and the drill bit 23 synchronously rotate. The supercharging device does not rotate along with the supercharging device, the upper turbine 7, the power turbine 12 and the compression turbine 13 in the supercharging device rotate under the flow force of drilling fluid, during specific work, the turbine cavity 14 and the high-pressure cavity 18 are fixed, the upper valve plate 21 does not move along with the high-pressure cavity 18, namely, a first eccentric through hole of the upper valve plate 21 is always aligned to the same direction, the lower valve plate 22 and the drill bit 23 rotate synchronously and do not rotate for a circle, and each second eccentric through hole on the lower valve plate 22 corresponds to the first eccentric through hole once, so that the high-pressure nozzle sprays the drilling fluid twice or more once every circle of rotation of the drill bit, and the spraying position is unchanged, thereby forming the directional hydraulic pulse rock breaking effect. Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (14)
1. A supercharging device for in drilling rod, its characterized in that: comprises a first power device connected with a drill rod and a drill collar, a second power device arranged in a relative rotation way with a drill bit (23) and a regulating device connected between the first power device and the second power device;
the first power device is an upper turbine (7);
the second power unit includes: the power turbine (12) and the power turbine (12) are integrated, the compression turbine (13) is arranged in the turbine cavity (14), and the bottom of the turbine cavity (14) is communicated to a high-pressure nozzle (24) on a drill bit (23) through a valve plate group;
the upper turbine (7) and the power turbine (12) automatically rotate under the pressure of the flowing drilling fluid, and the rotation directions are opposite.
2. The pressure intensifying apparatus as set forth in claim 1, wherein: the cavity of turbine chamber (14) is big-end-up's trumpet form, and compression turbine (13) profile suits with the cavity of turbine chamber (14), and turbine chamber (14) bottom intercommunication has high-pressure chamber (18), but high-pressure chamber (18) bottom and drill bit (23) relative rotation formula peg graft, and the drilling fluid after compression turbine (13) pressure boost is through high-pressure chamber (18) high pressure nozzle (24) department blowout on flowing to drill bit (23).
3. The pressure intensifying apparatus as set forth in claim 2, wherein: the cavity wall in high-pressure chamber (18) is bilayer structure, bilayer structure divides high-pressure chamber (18) into interior cavity and outer cavity, be provided with last valve block (21) that have depression bar (19) in the interior cavity, go up valve block (21) and drill bit (21) and go up lower valve block (22) laminating that sets firmly, go up valve block (21) and lower valve block (22) constitution the valve block group.
4. A pressure intensifying apparatus as set forth in claim 3, wherein: a piston (20) is arranged in the outer cavity, and an elastic piece (16) is arranged on the inner side of the piston (20) relative to the outer cavity.
5. A pressure intensifying apparatus as set forth in claim 3, wherein: the upper portion of the pressure lever (19) is provided with a shunting hole communicated with the high-pressure cavity (18), and the lower portion of the pressure lever (19) is connected to the upper valve plate (21) through an elastic telescopic structure in a compression state, so that the upper valve plate (21) is abutted against the lower valve plate (22) with a certain pressing force.
6. A supercharging arrangement for use within a drill rod according to claim 3 or 5, wherein: go up valve block (21) for being equipped with the circular valve block of at least one first eccentric through-hole, lower valve block (22) are for being equipped with at least two and above valve block (22) centre of a circle as the circular valve block of the eccentric through-hole of the second of central equipartition, work as when drill bit (23) is rotatory, the eccentric through-hole of second with certain frequency with first eccentric through-hole communicates in turn, makes high-pressure fluid in high-pressure chamber (18) through the first eccentric through-hole and the eccentric through-hole of second of intercommunication intermittent type get into drill bit (23) high pressure nozzle (24) department blowout.
7. The pressure intensifying apparatus as set forth in claim 6, wherein: the lower valve plate (22) is a circular valve plate provided with at least three second eccentric through holes uniformly distributed with the circle center of the upper valve plate (22) as the center, and when the drill bit (23) rotates, the second eccentric through holes are alternately communicated with the first eccentric through holes at a certain frequency, so that high-pressure fluid in the high-pressure cavity (18) intermittently enters the high-pressure nozzle (24) of the drill bit (23) through the communicated first eccentric through holes and the second eccentric through holes to be sprayed out.
8. The pressure intensifying apparatus as set forth in claim 2, wherein: and a sealing ring structure is arranged at the splicing part of the high-pressure cavity (18) and the drill bit (23).
9. The pressure intensifying apparatus as set forth in claim 1, wherein: the regulation and control device comprises a generator (8), a stabilizing motor (9), a measurement and control circuit board (10) and an attitude sensor (11) which are sequentially connected with an upper turbine (7), the measurement and control circuit board (10) and the attitude sensor (11) are arranged in an extension shell of the stabilizing motor (9), and the tail of the extension shell of the stabilizing motor (9) is connected with a power turbine (12) of a second power device.
10. A fluid jet guiding drilling tool, characterized in that the fluid jet guiding drilling tool comprises the pressurizing device used in the drill rod according to any one of claims 1-9, and further comprises an outer cylinder (17) sleeved on the periphery of the pressurizing device, a drill collar connected to the upper end of the outer cylinder (17), and a drill bit (23) connected to the lower end of the outer cylinder (17), wherein one part of drilling fluid in the inner cavity of the outer cylinder (17) flows out through a low-pressure water hole (25) of the drill bit (23), and the other part of drilling fluid flows out through a high-pressure nozzle (24) of the drill bit (23) after being pressurized by the pressurizing device.
11. A fluid jet steering drilling tool as claimed in claim 10, wherein: an upper turbine (7) in the supercharging device is connected to a drill collar through a central shaft (6) and an upper protection barrel (1), a lower coil (4) is installed on the upper portion of the central shaft (6), the lower coil (4) and an upper coil (3) in the upper protection barrel (1) are arranged in a coaxial clearance mode, and the lower coil (4) and the upper coil (3) can rotate relatively and are both sealing spiral wires.
12. A fluid jet steering drill tool as claimed in claim 11, wherein: go up a protection section of thick bamboo (1) and set up between two parties through last protection section of thick bamboo centralizer (2) relative urceolus (17), center pin (6) and last protection section of thick bamboo (1) are pegged graft and are set up, just center pin (6) periphery is provided with and rights bearing (5).
13. A fluid jet steering drill tool as claimed in claim 12, wherein: a lower righting bearing (15) is arranged on the outer side of the lower portion of a turbine cavity (14) in the supercharging device, and the supercharging device freely rotates in an inner cavity of an outer cylinder (17) through an upper righting bearing (5) at the upper end and a lower righting bearing (15) at the lower end under the flowing of drilling fluid.
14. A fluid jet steering drilling tool as claimed in claim 10, wherein: under the power of the drill collar, the outer cylinder (17) and the drill bit (23) synchronously rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159372.5A CN113700436A (en) | 2021-09-30 | 2021-09-30 | Pressurizing device used in drill rod and fluid jet guiding drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159372.5A CN113700436A (en) | 2021-09-30 | 2021-09-30 | Pressurizing device used in drill rod and fluid jet guiding drilling tool |
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| Publication Number | Publication Date |
|---|---|
| CN113700436A true CN113700436A (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111159372.5A Pending CN113700436A (en) | 2021-09-30 | 2021-09-30 | Pressurizing device used in drill rod and fluid jet guiding drilling tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117108205A (en) * | 2023-10-20 | 2023-11-24 | 四川派盛通石油工程技术有限公司 | Pulse type supercharging jet drilling device |
-
2021
- 2021-09-30 CN CN202111159372.5A patent/CN113700436A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117108205A (en) * | 2023-10-20 | 2023-11-24 | 四川派盛通石油工程技术有限公司 | Pulse type supercharging jet drilling device |
| CN117108205B (en) * | 2023-10-20 | 2024-01-23 | 四川派盛通石油工程技术有限公司 | Pulse type supercharging jet drilling device |
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